Hydrogen cylinder defect detection mechanism

Abstract

The invention discloses a hydrogen cylinder defect detection mechanism, and relates to the technical field of gas cylinder defect detection.The hydrogen cylinder defect detection mechanism comprises a hydrogen cylinder displacement conveying device, the hydrogen cylinder displacement conveying device comprises a conveying support, a displacement platform is installed at the top of the conveying support through a transverse movement control assembly, and an overturning notch is formed in the middle of the left side of the displacement platform; the device further comprises a hydrogen cylinder overturning control device, a hydrogen cylinder clamping and shifting device, a vertical shifting device for detection, a surrounding appearance detection device and an air tightness detection device. According to the hydrogen cylinder defect detection mechanism, dirt outside a hydrogen cylinder can be preliminarily cleaned before visual appearance detection, the accuracy of visual detection is improved, surface damage can be better found, the hydrogen cylinder sinks into water to be subjected to air tightness detection after visual detection, tiny leakage defects can be detected, and the detection efficiency is improved. And the hydrogen cylinder can be cleaned again when air tightness detection is carried out in water, dirt can be better removed, and damage on the surface of the hydrogen cylinder can be observed conveniently when visual detection is carried out again.

Description

Technical Field

[0001] The present invention relates to the technical field of gas cylinder defect detection, and particularly to a hydrogen gas cylinder defect detection mechanism. Background Art

[0002] At present, a hydrogen gas cylinder, that is, a steel cylinder for storing hydrogen, may have surface damage after the processing of the hydrogen gas cylinder. In order to ensure the normal use function and aesthetics of the hydrogen gas cylinder, it is necessary to perform a detection operation on the hydrogen gas cylinder before leaving the factory; The existing defect detection technologies usually perform visual inspection around the hydrogen gas cylinder. However, some tiny leakage defects cannot be detected visually, and moreover, if there is dirt on the outside of the hydrogen gas cylinder, it will affect the visual inspection. To solve the above problems, it is urgent to propose a comprehensive hydrogen gas cylinder defect detection device. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects, and provide a hydrogen gas cylinder defect detection mechanism, which can preliminarily clean the dirt on the outside of the hydrogen gas cylinder before the appearance visual inspection, improve the accuracy of the visual inspection, and can better detect surface damage. After the visual inspection, the hydrogen gas cylinder is sunk into water for airtightness detection, which can detect tiny leakage defects, and can also clean the hydrogen gas cylinder again when performing airtightness detection in water, which can better remove dirt and is conducive to observing the surface damage of the hydrogen gas cylinder during the next visual inspection, and can effectively solve the problems in the background art.

[0004] To achieve the above object, the present invention provides the following technical solution: A hydrogen gas cylinder defect detection mechanism, including a hydrogen gas cylinder shifting and conveying device, the hydrogen gas cylinder shifting and conveying device includes a conveying support, a transverse movement control component, a shifting platform and a flipping notch. The shifting platform is installed on the top of the conveying support through the transverse movement control component, and a flipping notch is opened in the middle of the left side of the shifting platform. The mechanism further includes: A hydrogen gas cylinder flipping control device, including a position maintaining component and a flipping control component. The position maintaining component is installed in the flipping notch, and the position maintaining component is connected to the flipping control component; A hydrogen gas cylinder clamping and shifting device, installed on the position maintaining component; A vertical movement device for detection, installed on the conveying support, and a circumferential appearance detection device is installed on the vertical movement device for detection; An airtightness detection device, installed below the left end of the conveying support.

[0005] The transfer bracket is used to install the transverse movement control component. The transverse movement control component is used to drive the displacement platform to move stably left and right relative to the transfer bracket. The position holding component is used to keep the hydrogen cylinder clamping and displacing device stably in a horizontal state within the flipping notch, and at the same time allow the flipping control component to drive the hydrogen cylinder clamping and displacing device to flip within the flipping notch. The hydrogen cylinder clamping and displacing device is used to clamp the hydrogen cylinder and can drive the hydrogen cylinder to displace up and down relative to the position holding component. The vertical movement device for detection is used to drive the circumferential appearance detection device to move up and down, changing the visual detection height of the circumferential appearance detection device for the appearance of the hydrogen cylinder. The circumferential appearance detection device is used to perform visual detection around the hydrogen cylinder, so as to achieve a comprehensive visual detection of the outer side of the hydrogen cylinder. The airtightness detection device cooperates with the flipping control component and the hydrogen cylinder clamping and displacing device to perform airtightness detection on the hydrogen cylinder. During detection, the transverse movement control component first drives the displacement platform to move right relative to the transfer bracket, places the hydrogen cylinder on the hydrogen cylinder clamping and displacing device, and the hydrogen cylinder clamping and displacing device clamps the bottom of the hydrogen cylinder. Then the transverse movement control component drives the displacement platform to move left relative to the transfer bracket, so that the hydrogen cylinder is located below the circumferential appearance detection device. The vertical movement device for detection drives the circumferential appearance detection device to move down, so that the circumferential appearance detection device first aligns with the outer side of the top of the hydrogen cylinder. The circumferential appearance detection device detects whether there is damage to the appearance of the hydrogen cylinder around the hydrogen cylinder. After one week of visual detection, the vertical movement device for detection drives the circumferential appearance detection device to move down a certain distance, and then the circumferential appearance detection device performs another one-week visual detection around the hydrogen cylinder. Repeat the above steps to complete the visual detection of the outer circumference of the hydrogen cylinder. Then the vertical movement device for detection drives the circumferential appearance detection device to move up to the highest position, and the transverse movement control component drives the displacement platform to move left relative to the transfer bracket again. The flipping control component plays a role and drives the hydrogen cylinder clamping and displacing device and the hydrogen cylinder to flip 180 degrees and then stop. At this time, the mouth of the hydrogen cylinder faces downward, and the hydrogen cylinder clamping and displacing device drives the hydrogen cylinder to move down, so that the mouth of the hydrogen cylinder cooperates with the airtightness detection device, and the airtightness detection of the hydrogen cylinder is completed with the help of the airtightness detection device. Since there is water in the airtightness detection device, the hydrogen cylinder is completely immersed in water during airtightness detection, and the external washing work of the hydrogen cylinder is also completed. After the airtightness detection is completed, the hydrogen cylinder clamping and displacing device drives the hydrogen cylinder to move up, and then the transverse movement control component drives the displacement platform to move right relative to the transfer bracket. The position holding component restores the hydrogen cylinder to the state where the mouth of the hydrogen cylinder faces upward, and then the outer circumference of the washed hydrogen cylinder is visually detected again with the help of the vertical movement device for detection and the circumferential appearance detection device. There are two visual detections before and after washing, and airtightness detection is also carried out. The detection means are complete and the detection accuracy is high.

[0006] Further, the position maintaining component includes a turning shaft, a control through groove, a reset torsion spring, and a turning frame. Two control through grooves are respectively formed on the front and rear sides of the shifting platform. The inner left end of the turning notch is rotatably connected to a longitudinal turning shaft. The front and rear ends of the turning shaft respectively extend into the two control through grooves. The rear end of the turning shaft is sleeved with a reset torsion spring, and the two ends of the reset torsion spring are respectively connected to the shifting platform and the turning shaft. When the reset torsion spring is in a natural state, the turning frame is in a horizontal state. Only by applying a counterclockwise torque to the turning shaft can the torsional resistance of the reset torsion spring be overcome to drive the turning frame to turn.

[0007] Further, the turning control component includes a control gear, a control rack, a horizontal guide groove, and a support frame. The front end of the turning shaft is fixedly connected with a control gear. A horizontal guide groove is formed on the front side of the top of the conveying support. The bottom of the support frame is horizontally slidably connected in the horizontal guide groove, and the support frame is connected to the conveying support through a horizontal movement fine adjustment component. The top of the support frame is fixedly connected with a horizontal control rack, and the top of the control rack is arranged corresponding to the bottom of the left and right sides of the control gear. When the horizontal movement control component drives the shifting platform to move leftward relative to the conveying support, the left bottom end of the control gear encounters the control rack. Since the position of the control rack remains unchanged while the control gear moves leftward, the control gear meshes with the control rack, causing the control gear to rotate counterclockwise by itself, thereby driving the turning shaft and the turning frame to rotate counterclockwise against the torsional resistance of the reset torsion spring. When the turning frame turns 180 degrees, the horizontal movement control component stops working. At this time, the bottle mouth of the hydrogen cylinder on the hydrogen cylinder clamping and shifting device faces downward. The horizontal movement fine adjustment component is used to drive the support frame and the control rack to move left and right within a small range, changing the left and right positions of the bottle mouth of the hydrogen cylinder facing downward, so that the bottle mouth of the hydrogen cylinder is aligned with the inflation component in the airtight detection device.

[0008] Further, the hydrogen cylinder clamping and shifting device includes a shifting seat plate, a concentric clamp, a round rod, a rod frame one, and an electric telescopic rod one. The shifting seat plate is vertically slidably installed inside the turning frame. A concentric clamp is installed on the shifting seat plate. The four corners of the bottom of the turning frame are respectively fixedly connected with four round rods, and the ends of the four round rods are fixedly connected with a rod frame one. The middle of the rod frame one is fixedly connected with one end of the electric telescopic rod one, and the other end of the electric telescopic rod one is fixedly connected with the middle of the shifting seat plate. The shifting seat plate clamps the bottom of the hydrogen cylinder with the concentric clamp. When the bottle mouth of the hydrogen cylinder faces upward, the electric telescopic rod one is in a shortened state. At this time, the upper side of the shifting seat plate is flush with the upper side of the turning frame. When the bottle mouth of the hydrogen cylinder faces downward and needs to cooperate with the airtight detection device for airtightness detection, the electric telescopic rod one extends, pushing the shifting seat plate, the concentric clamp, and the hydrogen cylinder to move downward, so that the bottle mouth of the hydrogen cylinder cooperates with the inflation component in the airtight detection device.

[0009] Further, the vertical movement device for detection includes a vertical movement control component and an annular platform. The annular platform is installed on the top of the transfer bracket through the vertical movement control component, and the vertical movement control component is located on the right side of the horizontal guide groove. The vertical movement control component is used to drive the annular platform to move up and down relative to the transfer bracket, so as to change the height of the circumferential appearance detection device, and enable the circumferential appearance detection device to detect the appearance damage at different heights of the hydrogen cylinder.

[0010] Further, the circumferential appearance detection device includes a circumferential power component, a circular rail, an annular limiting groove, a detection seat, a limiting roller, a detection camera bracket and an appearance detection camera. The inner edge of the top of the annular platform is fixedly connected with a circular rail, and two annular limiting grooves are respectively opened on the inner and outer sides of the circular rail. The bottom of the detection seat is respectively rotatably connected with two limiting rollers, and the two limiting rollers are respectively in rolling connection with the two annular limiting grooves. The detection seat is connected to the annular platform through the circumferential power component. The end of the detection seat close to the center of the circular rail is fixedly connected to the top of the detection camera bracket, and the appearance detection camera is installed on the detection camera bracket. The cooperation of the limiting roller and the annular limiting groove enables the detection seat to move stably along the circular rail. The circumferential power component provides power for the movement of the detection seat. The detection camera bracket is used to install the appearance detection camera. The detection seat drives the appearance detection camera to move around the hydrogen cylinder through the detection camera bracket, so as to detect the appearance of the hydrogen cylinder and check for damage defects on the outside of the hydrogen cylinder.

[0011] Furthermore, the airtight detection device includes a water tank, an inner support plate, a circular seat, a rubber circular pad, a rubber plug, a bottle rim sealing groove, an insertion tube, an air inflation and pressurization assembly, and a bubble detection camera. Inside the left end of the transfer support, there is a water tank. At the bottom inside the water tank, there is an inner support plate. On the inner support plate, there is a circular seat installed. At the top of the circular seat, there is a rubber circular pad. At the center of the top of the rubber circular pad, there is a rubber plug integrally formed and connected. And around the rubber plug at the top of the rubber circular pad, there is a bottle rim sealing groove opened. Vertically, an insertion tube is inserted through the center of the rubber plug. The bottom of the insertion tube is connected to the air inflation and pressurization assembly. At the top left end of the water tank, there is a bubble detection camera installed. Water is added to the water tank in advance, and the water in the water tank needs to be replaced regularly. When the displacement platform moves leftward, the flipping control assembly causes the hydrogen cylinder clamping and displacement device and the hydrogen cylinder to flip 180 degrees, with the mouth of the hydrogen cylinder facing downward. At this time, the mouth of the hydrogen cylinder corresponds to the rubber plug. If there is a left-right deviation between the mouth of the hydrogen cylinder and the rubber plug, then the displacement platform needs to move rightward, and the horizontal movement fine-tuning assembly is used to drive the support frame and the control rack to move left and right within a small range, changing the left-right position of the mouth of the hydrogen cylinder in the downward-facing state to ensure that the mouth of the hydrogen cylinder corresponds to the rubber plug. Then, the hydrogen cylinder clamping and displacement device drives the hydrogen cylinder to move downward in the water tank. The rubber plug is inserted into the mouth of the hydrogen cylinder, and the edge of the mouth of the hydrogen cylinder is inserted into the bottle rim sealing groove. The rubber circular pad and the rubber plug seal the mouth of the hydrogen cylinder. At this time, the bottom of the hydrogen cylinder is also completely submerged below the water surface of the water tank. The air inflation and pressurization assembly inflates the hydrogen cylinder through the insertion tube. The bubble detection camera observes whether there are bubbles on the water surface of the water tank. If there are bubbles, it means that there is a leakage defect in the hydrogen cylinder somewhere. Since the hydrogen cylinder sinks into the water, the hydrogen cylinder will also be cleaned. After the airtightness detection is completed, the hydrogen cylinder clamping and displacement device drives the hydrogen cylinder to move upward in the water tank. Then, the horizontal movement control assembly drives the displacement platform to move rightward relative to the transfer support. The meshing of the control gear and the control rack causes the flipping shaft to rotate clockwise, causing the hydrogen cylinder clamping and displacement device and the hydrogen cylinder to flip in the reverse direction. The hydrogen cylinder gradually returns to the state with the mouth facing upward. When the control gear and the control rack are disengaged, the position maintaining assembly causes the hydrogen cylinder to return to the state with the mouth facing upward. It stops when the hydrogen cylinder is again located below the circumferential appearance detection device. With the help of the detection vertical movement device and the circumferential appearance detection device, the outer peripheral side of the hydrogen cylinder after water washing is visually detected again.

[0012] Further, the inflation and pressurization assembly includes an inflation tube, a pressure sensor, a one-way valve, and an air pump. One end of the inflation tube is connected to the bottom of the intubation tube, and the other end of the inflation tube extends outside the water tank and is connected to the air outlet of the air pump. The pressure sensor and the one-way valve are respectively installed on the inflation tube. The air pump pumps air into the hydrogen cylinder through the inflation tube and the intubation tube. The one-way valve only allows air to flow into the hydrogen cylinder, preventing the air in the hydrogen cylinder from flowing back out through the inflation tube and the intubation tube after the air pump stops working. The pressure sensor is used to detect the air pressure in the inflation tube. After the pressure in the hydrogen cylinder is pressurized to an appropriate level, the air pump can stop working. Among them, the pressure sensor is set closer to the intubation tube than the one-way valve.

[0013] Further, it also includes a hydrogen cylinder cleaning device. The hydrogen cylinder cleaning device includes a cleaning brush and a displacement mounting component. The cleaning brush is mounted on the side of the detection camera frame through the displacement mounting component. The displacement mounting component is used to mount the cleaning brush. The cleaning brush moves with the detection camera frame and can clean the dirt on the outside of the hydrogen cylinder during movement, making the appearance detection of the hydrogen cylinder by the appearance detection camera more accurate.

[0014] Further, the displacement mounting component includes a disassembly plate, an arc rod, a rod holder II, and an electric telescopic rod II. The disassembly plate is mounted on the side of the detection camera frame. One end of the disassembly plate is connected to the arc rod, and the other end of the arc rod is fixedly connected to the rod holder II. The electric telescopic rod II is mounted on the rod holder II and is distributed along the radial direction of the annular platform. The cleaning brush is mounted at one end of the electric telescopic rod II close to the center of the annular platform. When detecting the outside of the hydrogen cylinder for the first time, the electric telescopic rod II expands and contracts to keep the cleaning brush always in contact with the outside of the hydrogen cylinder, brushing off dirt such as dust. When performing the appearance detection again after the hydrogen cylinder is washed in water, the electric telescopic rod II needs to be shortened to keep the cleaning brush away from the outside of the hydrogen cylinder, preventing the dust on the cleaning brush from mixing with the water remaining on the outside of the hydrogen cylinder and leaving dirt on the outside of the hydrogen cylinder.

[0015] Compared with the prior art, the beneficial effects of this hydrogen cylinder defect detection mechanism are as follows: 1. The vertical movement device for detection is used to drive the circumferential appearance detection device to move up and down, changing the visual detection height of the circumferential appearance detection device for the appearance of the hydrogen cylinder. The circumferential appearance detection device is used to perform visual detection around the hydrogen cylinder, thereby achieving a comprehensive visual detection of the outside of the hydrogen cylinder. The airtightness detection device, in cooperation with the flipping control component and the hydrogen cylinder clamping and displacement device, is used to perform airtightness detection on the hydrogen cylinder.

[0016] 2. When the shifting platform moves leftward, the flipping control component causes the hydrogen cylinder clamping and shifting device and the hydrogen cylinder to flip 180 degrees, with the mouth of the hydrogen cylinder facing downward. At this time, the mouth of the hydrogen cylinder corresponds to the rubber plug. Then, the hydrogen cylinder clamping and shifting device drives the hydrogen cylinder to move downward in the water tank, and the rubber plug is inserted into the mouth of the hydrogen cylinder, and the edge of the mouth of the hydrogen cylinder is inserted into the bottle edge sealing groove. The rubber gasket and the rubber plug seal the mouth of the hydrogen cylinder. At this time, the bottom of the hydrogen cylinder is also completely submerged below the water surface of the water tank. The inflation and pressurization component inflates the hydrogen cylinder through the insertion tube, and the bubble detection camera observes whether there are bubbles on the water surface of the water tank. If there are bubbles, it indicates that there is a leakage defect in the hydrogen cylinder somewhere.

[0017] 3. Before the appearance visual inspection, the external dirt of the hydrogen cylinder can be preliminarily cleaned to improve the accuracy of the visual inspection and better detect surface damage. After the visual inspection, the hydrogen cylinder is sunk into the water for airtightness detection, which can detect tiny leakage defects, and the hydrogen cylinder can also be cleaned again during the airtightness detection in the water, which is conducive to observing the surface damage of the hydrogen cylinder more clearly during the next visual inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the hydrogen cylinder defect detection mechanism of the present invention; Figure 2 is the present invention Figure 1 partial enlarged structural schematic diagram at B in; Figure 3 is the present invention Figure 1 partial enlarged structural schematic diagram at C in; Figure 4 is a side view structural schematic diagram of the hydrogen cylinder defect detection mechanism of the present invention; Figure 5 is the present invention Figure 4 partial enlarged structural schematic diagram at D in; Figure 6 is the present invention Figure 4 partial enlarged structural schematic diagram at E in; Figure 7 is a top view structural schematic diagram of the hydrogen cylinder defect detection mechanism of the present invention; Figure 8 is the present invention Figure 7 sectional structural schematic diagram at A in; Figure 9 is the present invention Figure 8 partial enlarged structural schematic diagram at G in; Figure 10 is a bottom view structural schematic diagram of the hydrogen cylinder defect detection mechanism of the present invention; Figure 11 is the present invention Figure 10 partial enlarged structural schematic diagram at F in; Figure 12 Schematic diagram of the partial structure of the hydrogen cylinder defect detection mechanism of the present invention Figure One ; Figure 13 Schematic diagram of the partial structure of the hydrogen cylinder defect detection mechanism of the present invention Figure Two ; In the figure: 1 Hydrogen cylinder shifting and conveying device, 11 Conveying bracket, 12 Rotating shaft, 13 Sprocket, 14 Chain, 15 Conveying motor, 16 Cross rail, 17 Rail sleeve, 18 Shifting platform, 19 Flipping notch, 2 Hydrogen cylinder flipping control device, 21 Flipping shaft, 22 Control through slot, 23 Reset torsion spring, 24 Flipping frame, 25 Control gear, 26 Control rack, 27 Horizontal guide slot, 28 Support frame, 29 Fine adjustment screw nut, 210 Support, 211 Fine adjustment screw, 212 Fine adjustment knob, 3 Vertical moving device for detection, 31 Ring platform, 32 Fixed seat, 33 Column, 34 Guide sleeve, 35 Motor frame, 36 Vertical moving motor, 37 Coupling, 38 Vertical moving lead screw, 39 Vertical moving lead screw nut, 4 Surrounding appearance detection device, 41 Circular rail, 42 Annular limiting groove, 43 Detection seat, 44 Limiting roller, 45 Internal gear ring, 46 Surrounding motor, 47 Surrounding gear, 48 Detection camera frame, 49 Appearance detection camera, 5 Air tightness detection device, 51 Water tank, 52 Inner support plate, 53 Round seat, 54 Rubber round pad, 55 Rubber plug, 56 Bottle edge sealing groove, 57 Insertion tube, 58 Inflation tube, 59 Pressure sensor, 510 Check valve, 511 Air pump, 512 Bubble detection camera, 6 Hydrogen cylinder clamping and shifting device, 61 Shifting seat plate, 62 Concentric clamp, 63 Round rod, 64 Rod frame one, 65 Electric telescopic rod one, 7 Hydrogen cylinder cleaning device, 71 Demounting plate, 72 Arc rod, 73 Rod frame two, 74 Electric telescopic rod two, 75 Cleaning brush, 8 Hydrogen cylinder. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1, please refer to Figures 1 to 13 , this embodiment provides a technical solution: a hydrogen cylinder defect detection mechanism, including a hydrogen cylinder shifting and conveying device 1. The hydrogen cylinder shifting and conveying device 1 includes a conveying bracket 11, a horizontal shifting control component, a shifting platform 18 and a flipping notch 19. The shifting platform 18 is installed on the top of the conveying bracket 11 through the horizontal shifting control component, and a flipping notch 19 is opened in the middle of the left side of the shifting platform 18.

[0021] The lateral movement control component includes a rotating shaft 12, a sprocket 13, a chain 14, a transmission motor 15, a horizontal rail 16, a rail sleeve 17, and a transmission bracket 11. Two horizontal rails 16 are respectively installed on the front and rear sides of the top of the transmission bracket 11. The front and rear sides of the displacement platform 18 are respectively fixedly connected with rail sleeves 17. The rail sleeves 17 are horizontally slidably connected to the corresponding horizontal rails 16. The cooperation of the rail sleeves 17 and the horizontal rails 16 makes the left and right movement of the displacement platform 18 smoother. The left and right ends of the top of the transmission bracket 11 are respectively rotatably connected with two longitudinal rotating shafts 12. Two sprockets 13 are respectively fixedly connected to both ends of each rotating shaft 12. The two corresponding sprockets 13 on the left and right are connected by a chain 14, and the end of the displacement platform 18 is connected to the top of the corresponding chain 14. The end of one of the rotating shafts 12 is connected to the output shaft of the transmission motor 15. The transmission motor 15 is installed on the transmission bracket 11. When the transmission motor 15 works, it drives the rotating shaft 12 to rotate. The rotating shaft 12 drives the chain 14 to operate through the sprocket 13, and the operation of the chain 14 can drive the displacement platform 18 to move left and right along the horizontal rail 16.

[0022] It also includes a hydrogen cylinder flipping control device 2, a hydrogen cylinder clamping and shifting device 6, a vertical movement detection device 3, a circumferential appearance detection device 4, and an airtightness detection device 5.

[0023] The hydrogen cylinder flipping control device 2 includes a position holding component and a flipping control component. The position holding component is installed in the flipping notch 19, and the position holding component is connected to the flipping control component.

[0024] The position holding component includes a flipping shaft 21, a control through slot 22, a return torsion spring 23, and a flipping frame 24. Two control through slots 22 are respectively opened on the front and rear sides of the displacement platform 18. The inner left end of the flipping notch 19 is rotatably connected with a longitudinal flipping shaft 21. The front and rear ends of the flipping shaft 21 respectively extend into the two control through slots 22. The rear end of the flipping shaft 21 is sleeved with a return torsion spring 23. The two ends of the return torsion spring 23 are respectively connected to the displacement platform 18 and the flipping shaft 21. When the return torsion spring 23 is in the natural state, the flipping frame 24 is in the horizontal state. Only by applying a counterclockwise torque to the flipping shaft 21 can the torsional resistance of the return torsion spring 23 be overcome to drive the flipping frame 24 to flip.

[0025] The flipping control component includes a control gear 25, a control rack 26, a horizontal guide groove 27, and a support frame 28. The front end of the flipping shaft 21 is fixedly connected with a control gear 25. A horizontal guide groove 27 is opened on the front side of the top of the transmission bracket 11. The bottom of the support frame 28 is horizontally slidably connected in the horizontal guide groove 27, and the support frame 28 is connected to the transmission bracket 11 through a lateral movement fine adjustment component. The top of the support frame 28 is fixedly connected with a horizontal control rack 26. The top of the control rack 26 is arranged corresponding to the bottom of the control gear 25 left and right.

[0026] The lateral movement fine-tuning component includes a fine-tuning lead screw nut 29, a support 210, a fine-tuning lead screw 211, and a fine-tuning knob 212. On the front side of the conveying bracket 11, two supports 210 are fixedly connected respectively at the left and right sides of the lateral guide groove 27. A lateral fine-tuning lead screw 211 is rotatably connected between the two supports 210 through bearings. A fine-tuning lead screw nut 29 is fitted on the fine-tuning lead screw 211. The rear side of the fine-tuning lead screw nut 29 is connected to the front end of the bottom of the support frame 28. One end of the fine-tuning lead screw 211 is connected to the fine-tuning knob 212. By rotating the fine-tuning knob 212 clockwise, the fine-tuning lead screw 211 drives the support frame 28 to move leftward along the lateral guide groove 27 through the threaded action between the fine-tuning lead screw 211 and the fine-tuning lead screw nut 29, thereby driving the control rack 26 to move leftward. By rotating the fine-tuning knob 212 counterclockwise, the fine-tuning lead screw 211 drives the support frame 28 to move rightward along the lateral guide groove 27 through the threaded action between the fine-tuning lead screw 211 and the fine-tuning lead screw nut 29, then driving the control rack 26 to move rightward.

[0027] The lateral movement control component drives the displacement platform 18 to move leftward relative to the conveying bracket 11. The left bottom end of the control gear 25 encounters the control rack 26. Since the position of the control rack 26 remains unchanged while the control gear 25 moves leftward, the control gear 25 meshes with the control rack 26, causing the control gear 25 to rotate counterclockwise by itself, thereby driving the turning shaft 21 and the turning frame 24 to rotate counterclockwise against the torsional resistance of the return torsion spring 23. When the turning frame 24 turns 180 degrees, the lateral movement control component stops working. At this time, the mouth of the hydrogen cylinder 8 on the hydrogen cylinder clamping and displacement device 6 is in a downward state. The lateral movement fine-tuning component is used to drive the support frame 28 and the control rack 26 to move slightly left and right, changing the left and right positions of the mouth of the hydrogen cylinder 8 in the downward state, so that the mouth of the hydrogen cylinder 8 is aligned with the inflation component in the airtight detection device 5.

[0028] The hydrogen cylinder clamping and displacement device 6 is installed on the position holding component.

[0029] The hydrogen cylinder clamping and shifting device 6 includes a shifting seat plate 61, a concentric clamp 62, a round rod 63, a first rod holder 64 and a first electric telescopic rod 65. The shifting seat plate 61 is vertically slidably installed inside the flipping frame 24. The concentric clamp 62 is installed on the shifting seat plate 61. Four round rods 63 are respectively and fixedly connected to the four corners of the bottom of the flipping frame 24. The ends of the four round rods 63 are fixedly connected to the first rod holder 64. The middle of the first rod holder 64 is fixedly connected to one end of the first electric telescopic rod 65. The other end of the first electric telescopic rod 65 is fixedly connected to the middle of the shifting seat plate 61. The shifting seat plate 61 clamps the bottom of the hydrogen cylinder 8 by means of the concentric clamp 62. When the mouth of the hydrogen cylinder 8 faces upward, the first electric telescopic rod 65 is in a shortened state. At this time, the upper side of the shifting seat plate 61 is flush with the upper side of the flipping frame 24. When the mouth of the hydrogen cylinder 8 faces downward and needs to cooperate with the airtight detection device 5 for airtightness detection, the first electric telescopic rod 65 extends, pushing the shifting seat plate 61, the concentric clamp 62 and the hydrogen cylinder 8 to move downward, so that the mouth of the hydrogen cylinder 8 is engaged with the inflation component in the airtight detection device 5.

[0030] The vertical shifting device 3 for detection is installed on the conveying support 11, and the circumferential appearance detection device 4 is installed on the vertical shifting device 3 for detection.

[0031] The vertical shifting device 3 for detection includes a vertical shifting control component and an annular platform 31. The annular platform 31 is installed on the top of the conveying support 11 through the vertical shifting control component, and the vertical shifting control component is located on the right side of the horizontal guide groove 27.

[0032] The vertical shifting control component includes a fixed seat 32, a column 33, a guide sleeve 34, a motor bracket 35, a vertical shifting motor 36, a coupling 37, a vertical shifting lead screw 38 and a vertical shifting lead screw nut 39. The vertical shifting motor 36 is installed on the bottom of the annular platform 31 through the motor bracket 35. The output shaft at the bottom of the vertical shifting motor 36 is connected to the top end of the vertical shifting lead screw 38 through the coupling 37. The vertical shifting lead screw nut 39 is installed on the conveying support 11 at the position corresponding to the vertical shifting lead screw 38. The vertical shifting lead screw nut 39 is in threaded connection with the vertical shifting lead screw 38. Two fixed seats 32 are respectively and fixedly connected to the positions on both sides of the motor bracket 35 at the bottom of the annular platform 31. The top ends of two columns 33 are respectively and fixedly connected to the bottoms of the two fixed seats 32. The guide sleeve 34 is fixedly connected to the conveying support 11 at the position corresponding to the column 33. The guide sleeve 34 is vertically slidably connected to the corresponding column 33. When the vertical shifting motor 36 works, it drives the vertical shifting lead screw 38 to rotate clockwise through the coupling 37. The threaded action between the vertical shifting lead screw 38 and the vertical shifting lead screw nut 39 drives the annular platform 31 to move downward along the column 33. When the vertical shifting motor 36 works, it drives the vertical shifting lead screw 38 to rotate counterclockwise through the coupling 37. The threaded action between the vertical shifting lead screw 38 and the vertical shifting lead screw nut 39 drives the annular platform 31 to move upward along the column 33.

[0033] There are two sets of vertical movement control components. The vertical movement control components are used to drive the annular platform 31 to move up and down relative to the conveying bracket 11, thereby changing the height of the surrounding appearance detection device 4, so that the surrounding appearance detection device 4 can detect the appearance damage of the hydrogen cylinder 8 at different heights.

[0034] The surrounding appearance detection device 4 includes a surrounding power component, a circular rail 41, an annular limiting groove 42, a detection seat 43, a limiting roller 44, a detection camera frame 48 and an appearance detection camera 49. The inner edge of the top of the annular platform 31 is fixedly connected with the circular rail 41. Two annular limiting grooves 42 are respectively opened on the inner and outer sides of the circular rail 41. Two limiting rollers 44 are respectively rotatably connected to the bottom of the detection seat 43. The two limiting rollers 44 are respectively in rolling connection with the two annular limiting grooves 42. And the detection seat 43 is connected to the annular platform 31 through the surrounding power component. One end of the detection seat 43 close to the center of the circular rail 41 is fixedly connected to the top of the detection camera frame 48. The appearance detection camera 49 is installed on the detection camera frame 48, and the lens of the appearance detection camera 49 faces the direction of the center of the annular platform 31.

[0035] The surrounding power component includes an internal gear ring 45, a surrounding motor 46, and a surrounding gear 47. The outer edge of the top of the annular platform 31 is fixedly connected with the internal gear ring 45. The surrounding motor 46 is installed on the detection seat 43. The output shaft of the surrounding motor 46 is fixedly connected with the surrounding gear 47. The surrounding gear 47 is meshed with the inner side of the internal gear ring 45. When the surrounding motor 46 works, it drives the surrounding gear 47 to rotate. The meshing action between the surrounding gear 47 and the internal gear ring 45 can drive the detection seat 43 to move along the circular rail 41.

[0036] The cooperation between the limiting roller 44 and the annular limiting groove 42 enables the detection seat 43 to move stably along the circular rail 41. The surrounding power component provides power for the movement of the detection seat 43. The detection camera frame 48 is used to install the appearance detection camera 49. The detection seat 43 drives the appearance detection camera 49 to move around the hydrogen cylinder 8 through the detection camera frame 48, so as to detect the appearance of the hydrogen cylinder 8 and check for damage defects on the outside of the hydrogen cylinder 8.

[0037] The airtight detection device 5 is installed below the left end of the conveying bracket 11.

[0038] The airtight detection device 5 includes a water tank 51, an inner support plate 52, a circular base 53, a rubber circular pad 54, a rubber plug 55, a bottle rim sealing groove 56, an insertion tube 57, an air inflation and pressurization assembly, and a bubble detection camera 512. Inside the left end of the conveying support 11, there is a water tank 51. At the inner bottom of the water tank 51, there is an inner support plate 52. On the inner support plate 52, there is a circular base 53 installed. On the top of the circular base 53, there is a rubber circular pad 54. At the center of the top of the rubber circular pad 54, there is a rubber plug 55 integrally formed. And at the position around the rubber plug 55 on the top of the rubber circular pad 54, there is a bottle rim sealing groove 56. Vertically inserted through the center of the rubber plug 55 is an insertion tube 57. The bottom of the insertion tube 57 is connected to the air inflation and pressurization assembly. On the top left end of the water tank 51, there is a bubble detection camera 512 installed, and the lens of the bubble detection camera 512 faces to the right. Water is added to the water tank 51 in advance, and the water in the water tank 51 needs to be replaced regularly. When the displacement platform 18 moves leftward, the flipping control assembly causes the hydrogen cylinder clamping and displacement device 6 and the hydrogen cylinder 8 to flip 180 degrees, with the mouth of the hydrogen cylinder 8 facing downward. At this time, the mouth of the hydrogen cylinder 8 corresponds to the rubber plug 55. If there is a deviation between the mouth of the hydrogen cylinder 8 and the rubber plug 55 left and right, then the displacement platform 18 needs to move rightward, and the transverse movement fine-tuning assembly is used to drive the support frame 28 and the control rack 26 to move left and right within a small range, changing the left and right position of the mouth of the hydrogen cylinder 8 in the downward-facing state to ensure that the mouth of the hydrogen cylinder 8 corresponds to the rubber plug 55. Then the hydrogen cylinder clamping and displacement device 6 drives the hydrogen cylinder 8 to move downward in the water tank 51, the rubber plug 55 is inserted into the mouth of the hydrogen cylinder 8, and the edge of the mouth of the hydrogen cylinder 8 is inserted into the bottle rim sealing groove 56. The rubber circular pad 54 and the rubber plug 55 seal the mouth of the hydrogen cylinder 8. At this time, the bottom of the hydrogen cylinder 8 is also completely submerged below the water surface of the water tank 51. The air inflation and pressurization assembly inflates the hydrogen cylinder 8 through the insertion tube 57. The bubble detection camera 512 observes whether there are bubbles on the water surface of the water tank 51. If there are bubbles, it means that there is a leakage defect in the hydrogen cylinder 8 somewhere. Since the hydrogen cylinder 8 sinks into the water, the hydrogen cylinder 8 will also be cleaned. After the airtightness detection is completed, the hydrogen cylinder clamping and displacement device 6 drives the hydrogen cylinder 8 to move upward in the water tank 51. Then the transverse movement control assembly drives the displacement platform 18 to move rightward relative to the conveying support 11. The meshing of the control gear 25 and the control rack 26 causes the turning shaft 21 to rotate clockwise, causing the hydrogen cylinder clamping and displacement device 6 and the hydrogen cylinder 8 to flip in the reverse direction, and the hydrogen cylinder 8 gradually returns to the state with the mouth facing upward. When the control gear 25 and the control rack 26 are disengaged, the position maintaining assembly causes the hydrogen cylinder 8 to return to the state with the mouth facing upward, and stops when the hydrogen cylinder 8 is again located below the circumferential appearance detection device 4. With the aid of the detection vertical movement device 3 and the circumferential appearance detection device 4, the outer peripheral side of the hydrogen cylinder 8 after water washing is visually detected again.

[0039] The inflation and pressurization assembly includes an inflation tube 58, a pressure sensor 59, a one-way valve 510, and an air pump 511. The bottom of the cannula 57 is connected to one end of the inflation tube 58, and the other end of the inflation tube 58 extends outside the water tank 51 and is connected to the air outlet of the air pump 511. The pressure sensor 59 and the one-way valve 510 are respectively installed on the inflation tube 58. The air pump 511 pumps air into the hydrogen cylinder 8 through the inflation tube 58 and the cannula 57. The one-way valve 510 only allows air to flow into the hydrogen cylinder 8, preventing the air in the hydrogen cylinder 8 from flowing back out through the inflation tube 58 and the cannula 57 after the air pump 511 stops working. The pressure sensor 59 is used to detect the air pressure in the inflation tube 58. After the pressure in the hydrogen cylinder 8 is pressurized to an appropriate level, the air pump 511 can stop working. Among them, the installation position of the pressure sensor 59 is closer to the cannula 57 than the one-way valve 510.

[0040] The transfer bracket 11 is used to install the lateral movement control component. The lateral movement control component is used to drive the displacement platform 18 to move stably left and right relative to the transfer bracket 11. The position holding component is used to keep the hydrogen cylinder clamping and displacement device 6 in a stable horizontal state within the flipping notch 19, and at the same time allows the flipping control component to drive the hydrogen cylinder clamping and displacement device 6 to flip within the flipping notch 19. The hydrogen cylinder clamping and displacement device 6 is used to clamp the hydrogen cylinder 8, and at the same time can drive the hydrogen cylinder 8 to move up and down relative to the position holding component. The vertical movement device 3 for detection is used to drive the circumferential appearance detection device 4 to move up and down, changing the visual detection height of the circumferential appearance detection device 4 for the appearance of the hydrogen cylinder 8. The circumferential appearance detection device 4 is used to perform visual detection around the hydrogen cylinder 8, so as to achieve a comprehensive visual detection of the outer side of the hydrogen cylinder 8. The airtightness detection device 5 cooperates with the flipping control component and the hydrogen cylinder clamping and displacement device 6 to perform airtightness detection on the hydrogen cylinder 8. During detection, the lateral movement control component first drives the displacement platform 18 to move right relative to the transfer bracket 11, places the hydrogen cylinder 8 on the hydrogen cylinder clamping and displacement device 6, and the hydrogen cylinder clamping and displacement device 6 clamps the bottom of the hydrogen cylinder 8. Then, the lateral movement control component drives the displacement platform 18 to move left relative to the transfer bracket 11, so that the hydrogen cylinder 8 is located below the circumferential appearance detection device 4. The vertical movement device 3 for detection drives the circumferential appearance detection device 4 to move down, so that the circumferential appearance detection device 4 first aligns with the outer side of the top of the hydrogen cylinder 8. The circumferential appearance detection device 4 detects whether there is damage to the appearance of the hydrogen cylinder 8 around the hydrogen cylinder 8. After one week of visual detection, the vertical movement device 3 for detection drives the circumferential appearance detection device 4 to move down a certain distance, and then the circumferential appearance detection device 4 performs another one-week visual detection around the hydrogen cylinder 8. Repeat the above steps to complete the visual detection of the outer peripheral side of the hydrogen cylinder 8. Then, the vertical movement device 3 for detection drives the circumferential appearance detection device 4 to move up to the highest position, and the lateral movement control component drives the displacement platform 18 to move left relative to the transfer bracket 11 again. The flipping control component plays a role in driving the hydrogen cylinder clamping and displacement device 6 and the hydrogen cylinder 8 to flip 180 degrees and then stop. At this time, the mouth of the hydrogen cylinder 8 is facing downwards. The hydrogen cylinder clamping and displacement device 6 drives the hydrogen cylinder 8 to move down, so that the mouth of the hydrogen cylinder 8 cooperates with the airtightness detection device 5, and the airtightness detection of the hydrogen cylinder 8 is completed with the help of the airtightness detection device 5. Since there is water in the airtightness detection device 5, the hydrogen cylinder 8 is completely immersed in water during airtightness detection, and the washing work of the outside of the hydrogen cylinder 8 is also completed. After the airtightness detection is completed, the hydrogen cylinder clamping and displacement device 6 drives the hydrogen cylinder 8 to move up, and then the lateral movement control component drives the displacement platform 18 to move right relative to the transfer bracket 11. The position holding component returns the hydrogen cylinder 8 to the state where the mouth of the hydrogen cylinder is facing upwards, and then the outer peripheral side of the washed hydrogen cylinder 8 is visually detected again with the help of the vertical movement device 3 for detection and the circumferential appearance detection device 4. There are two visual detections before and after washing, and airtightness detection is also carried out. The detection means are complete and the detection accuracy is high.

[0041] Embodiment 2, please refer to Figures 1 to 13, this embodiment provides a technical solution: a hydrogen cylinder defect detection mechanism. This embodiment is substantially the same as that of the first embodiment, and the difference lies in: It further includes a hydrogen cylinder cleaning device 7. The hydrogen cylinder cleaning device 7 includes a cleaning brush 75 and a displacement mounting component. The cleaning brush 75 is mounted on the side of the detection camera frame 48 through the displacement mounting component. The displacement mounting component is used to mount the cleaning brush 75. The cleaning brush 75 moves along with the detection camera frame 48. When moving, it can clean the dirt on the outer side of the hydrogen cylinder 8, making the detection of the appearance of the hydrogen cylinder 8 by the appearance detection camera 49 more accurate.

[0042] The displacement mounting component includes a disassembly plate 71, an arc rod 72, a rod holder two 73 and an electric telescopic rod two 74. The disassembly plate 71 is mounted on the side of the detection camera frame 48. One end of the disassembly plate 71 is connected to the arc rod 72. The other end of the arc rod 72 is fixedly connected to the rod holder two 73. The electric telescopic rod two 74 is mounted on the rod holder two 73. The electric telescopic rod two 74 is distributed along the radial direction of the annular platform 31. The end of the electric telescopic rod two 74 close to the center of the annular platform 31 is mounted with the cleaning brush 75. When detecting the outer side of the hydrogen cylinder 8 for the first time, the electric telescopic rod two 74 expands and contracts, so that the cleaning brush 75 always contacts the outer side of the hydrogen cylinder 8 to brush off dirt such as dust. When the hydrogen cylinder 8 is washed in water and then the appearance detection is carried out again, the electric telescopic rod two 74 needs to be shortened to make the cleaning brush 75 leave the outer side of the hydrogen cylinder 8, avoiding the mixture of the dust on the cleaning brush 75 and the water remaining on the outer side of the hydrogen cylinder 8 and being left on the outer side of the hydrogen cylinder 8.

[0043] Please refer to Figures 1 to 13 , a method for using a hydrogen cylinder defect detection mechanism, including the following steps: Step 1, the horizontal movement control component first drives the displacement platform 18 to move rightward relative to the conveying bracket 11, places the hydrogen cylinder 8 on the hydrogen cylinder clamping and displacement device 6, and the hydrogen cylinder clamping and displacement device 6 clamps the bottom of the hydrogen cylinder 8.

[0044] Step 2, the horizontal movement control component drives the displacement platform 18 to move leftward relative to the conveying bracket 11, so that the hydrogen cylinder 8 is located below the circumferential appearance detection device 4. The detection vertical movement device 3 drives the circumferential appearance detection device 4 to move downward, so that the circumferential appearance detection device 4 first aligns with the outer side of the top of the hydrogen cylinder 8.

[0045] Step 3, the limit roller 44 and the annular limit groove 42 cooperate to enable the detection seat 43 to move stably and smoothly along the circular rail 41. The circumferential power component provides power for the movement of the detection seat 43. The detection seat 43 drives the appearance detection camera 49 to move around the hydrogen cylinder 8 through the detection camera frame 48 to detect the appearance of the hydrogen cylinder 8 for one week, check for damage defects on the outside of the hydrogen cylinder 8. The cleaning brush 75 moves along with the detection camera frame 48. When moving, it cleans the dirt on the outer side of the hydrogen cylinder 8, making the detection of the appearance of the hydrogen cylinder 8 by the appearance detection camera 49 more accurate.

[0046] Step 4: One week after the visual inspection, the vertical movement device 3 for inspection drives the circumferential appearance inspection device 4 to move downward a certain distance, and then the circumferential appearance inspection device 4 circumscribes the hydrogen cylinder 8 again for a one-week visual inspection. Repeat the above steps to complete the visual inspection of the outer peripheral side of the hydrogen cylinder 8.

[0047] Step 5: The vertical movement device 3 for inspection drives the circumferential appearance inspection device 4 to move up to the highest position. The transverse movement control component drives the displacement platform 18 to move leftward again relative to the conveyor support 11. The bottom left end of the control gear 25 encounters the control rack 26. Since the position of the control rack 26 remains unchanged while the control gear 25 moves leftward, the control gear 25 meshes with the control rack 26, causing the control gear 25 to rotate counterclockwise by itself, thereby driving the turning shaft 21 and the turning frame 24 to rotate counterclockwise against the torsional resistance of the return torsion spring 23. When the turning frame 24 turns 180 degrees, the transverse movement control component stops working. At this time, the mouth of the hydrogen cylinder 8 on the hydrogen cylinder clamping and displacement device 6 is in a downward state.

[0048] Step 6: The first electric telescopic rod 65 extends, pushing the displacement seat plate 61, the concentric fixture 62, and the hydrogen cylinder 8 to move downward. The rubber plug 55 is inserted into the mouth of the hydrogen cylinder 8, and the edge of the mouth of the hydrogen cylinder 8 is inserted into the bottle rim sealing groove 56. The rubber gasket 54 and the rubber plug 55 seal the mouth of the hydrogen cylinder 8. At this time, the bottom of the hydrogen cylinder 8 is also completely submerged below the water surface of the water tank 51.

[0049] Step 7: The inflation and pressurization component inflates the hydrogen cylinder 8 through the intubation 57. The bubble detection camera 512 observes whether there are bubbles on the water surface of the water tank 51. If there are bubbles, it indicates that there is a leakage defect in the hydrogen cylinder 8 somewhere. Since the hydrogen cylinder 8 is submerged in water, the hydrogen cylinder 8 will also be cleaned.

[0050] Step 8: The first electric telescopic rod 65 shortens, driving the displacement seat plate 61, the concentric fixture 62, and the hydrogen cylinder 8 to move upward. Then the transverse movement control component drives the displacement platform 18 to move rightward relative to the conveyor support 11. The meshing of the control gear 25 and the control rack 26 causes the turning shaft 21 to rotate clockwise, reversing the rotation of the hydrogen cylinder clamping and displacement device 6 and the hydrogen cylinder 8. The hydrogen cylinder 8 gradually returns to the state with the mouth facing upward. When the control gear 25 and the control rack 26 are disengaged, the position maintaining component causes the hydrogen cylinder 8 to return to the state with the mouth facing upward and stops when the hydrogen cylinder 8 is again below the circumferential appearance inspection device 4. The outer peripheral side of the hydrogen cylinder 8 after water washing is visually inspected again by means of the vertical movement device 3 for inspection and the circumferential appearance inspection device 4.

[0051] It should be noted that the conveying motor 15, vertical movement motor 36, surrounding motor 46, air pump 511, concentric fixture 62, first electric telescopic rod 65 and second electric telescopic rod 74 disclosed in the above embodiments are all controlled by an external PLC controller, and the control method adopts the method commonly used in the prior art. Among them, the conveying motor 15, vertical movement motor 36 and surrounding motor 46 all adopt servo motors.

[0052] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen cylinder defect detection mechanism, comprising a hydrogen cylinder shifting and conveying device (1), the hydrogen cylinder shifting and conveying device (1) including a conveying support (11), a lateral shifting control assembly, a shifting platform (18) and a flipping notch (19), the shifting platform (18) being mounted on the top of the conveying support (11) through the lateral shifting control assembly, and a flipping notch (19) being formed in the middle of the left side of the shifting platform (18), characterized in that, It further includes: A hydrogen cylinder flipping control device (2), which includes a position holding component and a flipping control component. The position holding component is installed in the flipping notch (19), and the position holding component is connected to the flipping control component; A hydrogen cylinder clamping and shifting device (6), which is installed on the position holding component; A vertical shifting device for detection (3), which is installed on the conveying bracket (11), and a circumferential appearance detection device (4) is installed on the vertical shifting device for detection (3); An airtight detection device (5), which is installed below the left end of the conveying bracket (11).

2. The hydrogen cylinder defect detection mechanism according to claim 1, characterized in that: The position holding component includes a flipping shaft (21), a control through groove (22), a return torsion spring (23) and a flipping frame (24). Two control through grooves (22) are respectively opened on the front and rear sides of the shifting platform (18). The inner left end of the flipping notch (19) is rotatably connected to a longitudinal flipping shaft (21). The front and rear ends of the flipping shaft (21) respectively extend into the two control through grooves (22). A return torsion spring (23) is sleeved on the rear end of the flipping shaft (21), and the two ends of the return torsion spring (23) are respectively connected to the shifting platform (18) and the flipping shaft (21).

3. The hydrogen cylinder defect detection mechanism according to claim 2, characterized in that: The flipping control component includes a control gear (25), a control rack (26), a horizontal guide groove (27) and a support frame (28). The front end of the flipping shaft (21) is fixedly connected to the control gear (25). A horizontal guide groove (27) is opened on the front side of the top of the conveying bracket (11). The bottom of the support frame (28) is horizontally slidably connected in the horizontal guide groove (27), and the support frame (28) is connected to the conveying bracket (11) through a horizontal fine adjustment component. The top of the support frame (28) is fixedly connected to a horizontal control rack (26), and the top of the control rack (26) is arranged corresponding to the bottom of the control gear (25) left and right.

4. The hydrogen cylinder defect detection mechanism according to claim 2, characterized in that: The hydrogen cylinder clamping and shifting device (6) includes a shifting seat plate (61), a concentric clamp (62), a round rod (63), a rod frame one (64) and an electric telescopic rod one (65). The shifting seat plate (61) is vertically slidably installed inside the flipping frame (24). The concentric clamp (62) is installed on the shifting seat plate (61). Four round rods (63) are respectively fixedly connected to the four corners of the bottom of the flipping frame (24). The ends of the four round rods (63) are fixedly connected to a rod frame one (64). The middle of the rod frame one (64) is fixedly connected to one end of the electric telescopic rod one (65), and the other end of the electric telescopic rod one (65) is fixedly connected to the middle of the shifting seat plate (61).

5. The hydrogen cylinder defect detection mechanism according to claim 3, characterized in that: The vertical shifting device for detection (3) includes a vertical shifting control component and an annular platform (31). The annular platform (31) is installed on the top of the conveying bracket (11) through the vertical shifting control component, and the vertical shifting control component is located on the right side of the horizontal guide groove (27).

6. The hydrogen cylinder defect detection mechanism according to claim 5, wherein: The described circumferential appearance detection device (4) includes a circumferential power component, a circular rail (41), an annular limiting groove (42), a detection seat (43), a limiting roller (44), a detection camera frame (48), and an appearance detection camera (49). The inner edge of the top of the annular platform (31) is fixedly connected to the circular rail (41). Two annular limiting grooves (42) are respectively formed on the inner and outer sides of the circular rail (41). The bottom of the detection seat (43) is respectively rotatably connected to two limiting rollers (44). The two limiting rollers (44) are respectively in rolling connection with the two annular limiting grooves (42), and the detection seat (43) is connected to the annular platform (31) through the circumferential power component. One end of the detection seat (43) close to the center of the circular rail (41) is fixedly connected to the top of the detection camera frame (48), and the appearance detection camera (49) is installed on the detection camera frame (48).

7. The hydrogen cylinder defect detection mechanism according to claim 3, wherein: The described airtight detection device (5) includes a water tank (51), an inner support plate (52), a circular seat (53), a rubber circular pad (54), a rubber plug (55), a bottle rim sealing groove (56), an insertion tube (57), an air inflation and pressurization component, and a bubble detection camera (512). The water tank (51) is arranged inside the left end of the conveying support (11). The inner bottom of the water tank (51) is provided with an inner support plate (52). The circular seat (53) is installed on the inner support plate (52). The rubber circular pad (54) is arranged on the top of the circular seat (53). The center of the top of the rubber circular pad (54) is integrally formed and connected to the rubber plug (55), and a bottle rim sealing groove (56) is formed around the rubber plug (55) at the top of the rubber circular pad (54). The vertical insertion tube (57) is inserted through the center of the rubber plug (55). The bottom of the insertion tube (57) is connected to the air inflation and pressurization component. The bubble detection camera (512) is installed on the top left end of the water tank (51).

8. The hydrogen cylinder defect detection mechanism according to claim 7, characterized in that: The described air inflation and pressurization component includes an air inflation tube (58), a pressure sensor (59), a one-way valve (510), and an air pump (511). The bottom of the insertion tube (57) is connected to one end of the air inflation tube (58). The other end of the air inflation tube (58) extends outside the water tank (51) and is connected to the air outlet of the air pump (511). The pressure sensor (59) and the one-way valve (510) are respectively installed on the air inflation tube (58).

9. The hydrogen cylinder defect detection mechanism according to claim 6, wherein: It further includes a hydrogen cylinder cleaning device (7). The hydrogen cylinder cleaning device (7) includes a cleaning brush (75) and a displacement and installation component. The cleaning brush (75) is installed on the side of the detection camera frame (48) through the displacement and installation component.

10. The hydrogen cylinder defect detection mechanism according to claim 9, characterized in that: The displacement mounting assembly includes a disassembly plate (71), an arc rod (72), a second rod holder (73), and a second electric telescopic rod (74). A disassembly plate (71) is mounted on the side of the detection camera holder (48). One end of the disassembly plate (71) is connected to the arc rod (72), and the other end of the arc rod (72) is fixedly connected to a second rod holder (73). A second electric telescopic rod (74) is mounted on the second rod holder (73). The second electric telescopic rod (74) is distributed along the radial direction of the annular table (31). One end of the second electric telescopic rod (74) close to the center of the annular table (31) is mounted with a cleaning brush (75).

Images